28103655975

素因数分解:

$3^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{20879}}^1$

素因数の和:21160

約数の個数: 48

約数和(自身を含む): 47163409920

約数和(自身を除く): 19059753945

約数列:

[1, 3, 5, 15, 25, 75, 131, 137, 393, 411, 655, 685, 1965, 2055, 3275, 3425, 9825, 10275, 17947, 20879, 53841, 62637, 89735, 104395, 269205, 313185, 448675, 521975, 1346025, 1565925, 2735149, 2860423, 8205447, 8581269, 13675745, 14302115, 41027235, 42906345, 68378725, 71510575, 205136175, 214531725, 374715413, 1124146239, 1873577065, 5620731195, 9367885325, 28103655975]

約数ペア:

[(1, 28103655975), (3, 9367885325), (5, 5620731195), (15, 1873577065), (25, 1124146239), (75, 374715413), (131, 214531725), (137, 205136175), (393, 71510575), (411, 68378725), (655, 42906345), (685, 41027235), (1965, 14302115), (2055, 13675745), (3275, 8581269), (3425, 8205447), (9825, 2860423), (10275, 2735149), (17947, 1565925), (20879, 1346025), (53841, 521975), (62637, 448675), (89735, 313185), (104395, 269205)]